Use TextFieldState in CustomInput state for proper MVI text handling

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/userstatus/UserStatusEvent.kt

@@ -22,8 +22,6 @@ sealed interface UserStatusEvent {
     data object CancelCustomInput : UserStatusEvent
     /** User changed the emoji in the custom input row. */
     data class UpdateCustomEmoji(val emoji: String) : UserStatusEvent
-    /** User changed the text in the custom input row. */
-    data class UpdateCustomText(val text: String) : UserStatusEvent
     /** User tapped the clear action on an existing status. */
     data object Clear : UserStatusEvent
 }

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/userstatus/UserStatusPresenter.kt

@@ -7,6 +7,9 @@
 
 package io.element.android.features.preferences.impl.userstatus
 
+import androidx.compose.foundation.text.input.TextFieldState
+import androidx.compose.foundation.text.input.clearText
+import androidx.compose.foundation.text.input.setTextAndPlaceCursorAtEnd
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
@@ -31,6 +34,7 @@ class UserStatusPresenter(
     override fun present(): UserStatusState {
         val userProfile by matrixClient.userProfile.collectAsState()
         var pickerState by remember { mutableStateOf<UserStatusPickerState>(UserStatusPickerState.Hidden) }
+        val customTextFieldState = remember { TextFieldState() }
         val coroutineScope = rememberCoroutineScope()
 
         fun handleEvent(event: UserStatusEvent) {
@@ -39,9 +43,14 @@ class UserStatusPresenter(
                 UserStatusEvent.Dismiss -> pickerState = UserStatusPickerState.Hidden
                 UserStatusEvent.OpenCustomInput -> {
                     val raw = userProfile.rawStatus
+                    if (raw != null) {
+                        customTextFieldState.setTextAndPlaceCursorAtEnd(raw.text)
+                    } else {
+                        customTextFieldState.clearText()
+                    }
                     pickerState = UserStatusPickerState.CustomInput(
                         emoji = raw?.emoji ?: "😀",
-                        text = raw?.text ?: "",
+                        textFieldState = customTextFieldState,
                     )
                 }
                 is UserStatusEvent.Set -> {
@@ -57,10 +66,6 @@ class UserStatusPresenter(
                     val current = pickerState as? UserStatusPickerState.CustomInput ?: return
                     pickerState = current.copy(emoji = event.emoji)
                 }
-                is UserStatusEvent.UpdateCustomText -> {
-                    val current = pickerState as? UserStatusPickerState.CustomInput ?: return
-                    pickerState = current.copy(text = event.text)
-                }
             }
         }
 

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/userstatus/UserStatusState.kt

@@ -8,6 +8,7 @@
 package io.element.android.features.preferences.impl.userstatus
 
 import androidx.annotation.StringRes
+import androidx.compose.foundation.text.input.TextFieldState
 import io.element.android.features.preferences.impl.R
 import io.element.android.libraries.matrix.api.user.DisplayedStatus
 
@@ -22,7 +23,7 @@ sealed interface UserStatusPickerState {
     data object ShowingPicker : UserStatusPickerState
     data class CustomInput(
         val emoji: String = "😀",
-        val text: String = "",
+        val textFieldState: TextFieldState,
     ) : UserStatusPickerState
 }
 

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/userstatus/UserStatusView.kt

@@ -15,8 +15,10 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.shape.CircleShape
-import androidx.compose.foundation.text.KeyboardActions
 import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.text.input.InputTransformation
+import androidx.compose.foundation.text.input.TextFieldLineLimits
+import androidx.compose.foundation.text.input.TextFieldState
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
@@ -32,6 +34,7 @@ import io.element.android.libraries.designsystem.components.list.ListItemContent
 import io.element.android.libraries.designsystem.preview.ElementPreview
 import io.element.android.libraries.designsystem.preview.PreviewsDayNight
 import io.element.android.libraries.designsystem.theme.components.Button
+import io.element.android.libraries.designsystem.theme.components.FilledTextField
 import io.element.android.libraries.designsystem.theme.components.Icon
 import io.element.android.libraries.designsystem.theme.components.IconButton
 import io.element.android.libraries.designsystem.theme.components.IconSource
@@ -40,7 +43,6 @@ import io.element.android.libraries.designsystem.theme.components.ModalBottomShe
 import io.element.android.libraries.designsystem.theme.components.Surface
 import io.element.android.libraries.designsystem.theme.components.Text
 import io.element.android.libraries.designsystem.theme.components.TextButton
-import io.element.android.libraries.designsystem.theme.components.TextField
 import io.element.android.libraries.matrix.api.user.DisplayedStatus
 import io.element.android.libraries.matrix.api.user.UserStatus
 import io.element.android.libraries.ui.strings.CommonStrings
@@ -77,10 +79,13 @@ fun UserStatusRow(
         is UserStatusPickerState.CustomInput -> {
             CustomStatusInputRow(
                 emoji = pickerState.emoji,
-                text = pickerState.text,
+                textFieldState = pickerState.textFieldState,
                 onEmojiChange = { state.eventSink(UserStatusEvent.UpdateCustomEmoji(it)) },
-                onTextChange = { state.eventSink(UserStatusEvent.UpdateCustomText(it)) },
-                onConfirm = { state.eventSink(UserStatusEvent.Set(UserStatus(pickerState.emoji, pickerState.text))) },
+                onConfirm = {
+                    state.eventSink(
+                        UserStatusEvent.Set(UserStatus(pickerState.emoji, pickerState.textFieldState.text.toString()))
+                    )
+                },
                 onCancel = { state.eventSink(UserStatusEvent.CancelCustomInput) },
                 modifier = modifier,
             )
@@ -158,24 +163,21 @@ private fun UserStatusPickerBottomSheet(
 @Composable
 private fun CustomStatusInputRow(
     emoji: String,
-    text: String,
+    textFieldState: TextFieldState,
     onEmojiChange: (String) -> Unit,
-    onTextChange: (String) -> Unit,
     onConfirm: () -> Unit,
     onCancel: () -> Unit,
     modifier: Modifier = Modifier,
 ) {
     ListItem(
         headlineContent = {
-            TextField(
-                value = text,
-                onValueChange = { if (it.length <= 30) onTextChange(it) },
-                placeholder = stringResource(R.string.screen_preferences_user_status_custom_hint),
+            FilledTextField(
+                state = textFieldState,
+                placeholder = { Text(stringResource(R.string.screen_preferences_user_status_custom_hint)) },
+                inputTransformation = InputTransformation { if (length > 30) revertAllChanges() },
                 keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),
-                keyboardActions = KeyboardActions(
-                    onDone = { if (text.isNotBlank()) onConfirm() }
-                ),
-                singleLine = true,
+                keyboardActions = { if (textFieldState.text.isNotBlank()) onConfirm() },
+                lineLimits = TextFieldLineLimits.SingleLine,
             )
         },
         trailingContent = ListItemContent.Custom({
@@ -261,7 +263,7 @@ internal fun UserStatusRowCustomInputPreview() = ElementPreview {
     UserStatusRow(
         state = UserStatusState(
             displayedStatus = null,
-            pickerState = UserStatusPickerState.CustomInput(emoji = "😀", text = ""),
+            pickerState = UserStatusPickerState.CustomInput(emoji = "😀", textFieldState = TextFieldState()),
             eventSink = {},
         )
     )

features/preferences/impl/src/test/kotlin/io/element/android/features/preferences/impl/userstatus/UserStatusPresenterTest.kt

@@ -16,6 +16,7 @@ import io.element.android.libraries.matrix.api.user.UserStatus
 import io.element.android.libraries.matrix.test.FakeMatrixClient
 import kotlinx.coroutines.test.runTest
 import org.junit.Test
+import androidx.compose.foundation.text.input.TextFieldState
 
 class UserStatusPresenterTest {
 
@@ -81,7 +82,7 @@ class UserStatusPresenterTest {
             val state = awaitItem()
             val pickerState = state.pickerState as UserStatusPickerState.CustomInput
             assertThat(pickerState.emoji).isEqualTo("😀")
-            assertThat(pickerState.text).isEqualTo("")
+            assertThat(pickerState.textFieldState.text.toString()).isEqualTo("")
         }
     }
 
@@ -98,19 +99,7 @@ class UserStatusPresenterTest {
             val state = awaitItem()
             val pickerState = state.pickerState as UserStatusPickerState.CustomInput
             assertThat(pickerState.emoji).isEqualTo("🌴")
-            assertThat(pickerState.text).isEqualTo("Away")
-        }
-    }
-
-    @Test
-    fun `UpdateCustomText updates text in CustomInput state`() = runTest {
-        moleculeFlow(RecompositionMode.Immediate) {
-            createPresenter().present()
-        }.test {
-            awaitItem().eventSink(UserStatusEvent.OpenCustomInput)
-            awaitItem().eventSink(UserStatusEvent.UpdateCustomText("Focusing"))
-            val state = awaitItem()
-            assertThat((state.pickerState as UserStatusPickerState.CustomInput).text).isEqualTo("Focusing")
+            assertThat(pickerState.textFieldState.text.toString()).isEqualTo("Away")
         }
     }